Relative Photonic Properties of Fe/TiO₂-Nanocarbon Catalysts for Degradation of MB Solution under Visible Light

Abstract

Nanocarbon supported Fe/TiO2 composite catalysts were prepared using CNTs (carbon nanotubes) and C60 (fullerene) as nanocarbon sources by a modified sol-gel method. The Fe/TiO2-nanocarbon composites were characterized by the BET surface area, scanning electron microscope (SEM), Transmission Electron Microscope (TEM), X-ray diffraction (XRD), energy dispersive X-ray (EDX) and UV-vis spectra. In comparison with non-nanocarbon doped Fe/TiO2 composites, the nanocarbon supported Fe/TiO2 composites had higher absorption ability with a larger specific surface area, and showed higher photocatalytic activity during the degradation of methylene blue (MB) under visible light. The reasons for the obvious increase of photocatalytic activity indicated that the photoactivity not only benefits from nanocarbon introduced, but also relates to the cooperative effect of the Fe as a dopant.

Zinc Porphyrin-Functionalized Fullerenes for the Sensitization of Titania as a Visible-Light Active Photocatalyst: River Waters and Wastewaters Remediation

“…Artificial photosynthetic systems employing porphyrin-linked fullerene derivatives have been thoroughly examined in organic photovoltaic cells (OPVs). Porphyrins [6,7,8,9,10] and fullerenes [11,12,13,14,15,16,17,18,19] have also been independently employed for the preparation of modified titania. Nevertheless, to our knowledge, there are no reports involving covalently linked porphyrin–fullerene dyads as photosensitizers for titania photocatalysis.…”

Fabrication of Hybrid NiO/ACF/TiO2Composites and Their Photocatalytic Activity Under Visible Light

“…There were some small impurities, which are believed to have been introduced from the unpurified yttrium nitrate. 21) In the case of most samples, carbon and titanium were present as major elements with small quantities of oxygen in the composite (shown in Table 2). Fig.…”